Italian architect Stefano Boeri has revealed designs for a plant-covered 36-storey tower in Lausanne, Switzerland, continuing the "vertical forest" concept he trialled with a pair of towers in Milan (+ slideshow). More

Architects Agnieszka Preibisz and Peter Sandhaus have unveiled a conceptual skyscraper for Berlin with a twisted figure-of-eight structure that curves around elevated gardens and is held up by cables. More